<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.4"/>
<title>gbmath: line2d.cpp Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
 <tbody>
 <tr style="height: 56px;">
  <td id="projectlogo"><img alt="Logo" src="logo.jpg"/></td>
  <td style="padding-left: 0.5em;">
   <div id="projectname">gbmath
   &#160;<span id="projectnumber">v0.051</span>
   </div>
   <div id="projectbrief">c++ math library</div>
  </td>
 </tr>
 </tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.4 -->
  <div id="navrow1" class="tabs">
    <ul class="tablist">
      <li><a href="index.html"><span>Main&#160;Page</span></a></li>
      <li><a href="pages.html"><span>Related&#160;Pages</span></a></li>
      <li><a href="namespaces.html"><span>Namespaces</span></a></li>
      <li><a href="annotated.html"><span>Classes</span></a></li>
      <li class="current"><a href="files.html"><span>Files</span></a></li>
    </ul>
  </div>
  <div id="navrow2" class="tabs2">
    <ul class="tablist">
      <li><a href="files.html"><span>File&#160;List</span></a></li>
      <li><a href="globals.html"><span>File&#160;Members</span></a></li>
    </ul>
  </div>
</div><!-- top -->
<div class="header">
  <div class="headertitle">
<div class="title">line2d.cpp</div>  </div>
</div><!--header-->
<div class="contents">
<a href="line2d_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160; </div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;</div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="__gbmath_8h.html" title="MAIN INCLUDE HEADER. ">_gbmath.h</a>&quot;</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160; </div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160; </div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160; </div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="keyword">namespace </span>gbmath</div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;{</div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;</div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;</div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;</div>
<div class="line"><a name="l00012"></a><span class="lineno"><a class="code" href="classgbmath_1_1line2d.html#ab6904fd001252f6c37b47fd45faeefbd">   12</a></span>&#160;    <a class="code" href="structgbmath_1_1vec2.html" title="2d-base vector. Corrected by operators epislon ">vec2</a> <a class="code" href="classgbmath_1_1line2d.html#ab6904fd001252f6c37b47fd45faeefbd">line2d::project_point</a>( <span class="keyword">const</span> <a class="code" href="structgbmath_1_1vec2.html" title="2d-base vector. Corrected by operators epislon ">vec2</a>&amp; pnt )</div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;    {</div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;</div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;        <span class="comment">//const Vector2&amp;  p ta,</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;        <span class="comment">//const Vector2&amp;  p tb,</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;        <span class="comment">//const Vector2&amp;  pt _from,</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;        <span class="comment">//Vector2&amp;  pt_to</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;</div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;</div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;</div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;        <span class="keywordtype">float</span> b1 = pnt.<a class="code" href="structgbmath_1_1vec2.html#a86ff75c64d87662abfee8c35c5a343d0">x</a> * ( <a class="code" href="classgbmath_1_1line2d.html#a88213f34941eec77ffd84cbe682ca600">src</a>.<a class="code" href="structgbmath_1_1vec2.html#a86ff75c64d87662abfee8c35c5a343d0">x</a> -  <a class="code" href="classgbmath_1_1line2d.html#ac8f71a79167222b38daa1b35c3fefb68">dest</a>.<a class="code" href="structgbmath_1_1vec2.html#a86ff75c64d87662abfee8c35c5a343d0">x</a>) + pnt.<a class="code" href="structgbmath_1_1vec2.html#a9212649e2705d2216739fc89763f00b6">y</a> * ( <a class="code" href="classgbmath_1_1line2d.html#a88213f34941eec77ffd84cbe682ca600">src</a>.<a class="code" href="structgbmath_1_1vec2.html#a9212649e2705d2216739fc89763f00b6">y</a> -  <a class="code" href="classgbmath_1_1line2d.html#ac8f71a79167222b38daa1b35c3fefb68">dest</a>.<a class="code" href="structgbmath_1_1vec2.html#a9212649e2705d2216739fc89763f00b6">y</a>);</div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;        <span class="keywordtype">float</span> b2 =  <a class="code" href="classgbmath_1_1line2d.html#a88213f34941eec77ffd84cbe682ca600">src</a>.<a class="code" href="structgbmath_1_1vec2.html#a86ff75c64d87662abfee8c35c5a343d0">x</a> *  <a class="code" href="classgbmath_1_1line2d.html#ac8f71a79167222b38daa1b35c3fefb68">dest</a>.<a class="code" href="structgbmath_1_1vec2.html#a9212649e2705d2216739fc89763f00b6">y</a> -  <a class="code" href="classgbmath_1_1line2d.html#a88213f34941eec77ffd84cbe682ca600">src</a>.<a class="code" href="structgbmath_1_1vec2.html#a9212649e2705d2216739fc89763f00b6">y</a> *  <a class="code" href="classgbmath_1_1line2d.html#ac8f71a79167222b38daa1b35c3fefb68">dest</a>.<a class="code" href="structgbmath_1_1vec2.html#a86ff75c64d87662abfee8c35c5a343d0">x</a>;</div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;</div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;        <a class="code" href="structgbmath_1_1vec2.html" title="2d-base vector. Corrected by operators epislon ">vec2</a> pt_to;</div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;</div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;        pt_to.<a class="code" href="structgbmath_1_1vec2.html#a9212649e2705d2216739fc89763f00b6">y</a> = ( <a class="code" href="classgbmath_1_1line2d.html#a88213f34941eec77ffd84cbe682ca600">src</a>.<a class="code" href="structgbmath_1_1vec2.html#a86ff75c64d87662abfee8c35c5a343d0">x</a> -  <a class="code" href="classgbmath_1_1line2d.html#ac8f71a79167222b38daa1b35c3fefb68">dest</a>.<a class="code" href="structgbmath_1_1vec2.html#a86ff75c64d87662abfee8c35c5a343d0">x</a>) * ( <a class="code" href="classgbmath_1_1line2d.html#a88213f34941eec77ffd84cbe682ca600">src</a>.<a class="code" href="structgbmath_1_1vec2.html#a86ff75c64d87662abfee8c35c5a343d0">x</a> -  <a class="code" href="classgbmath_1_1line2d.html#ac8f71a79167222b38daa1b35c3fefb68">dest</a>.<a class="code" href="structgbmath_1_1vec2.html#a86ff75c64d87662abfee8c35c5a343d0">x</a>) + ( <a class="code" href="classgbmath_1_1line2d.html#a88213f34941eec77ffd84cbe682ca600">src</a>.<a class="code" href="structgbmath_1_1vec2.html#a9212649e2705d2216739fc89763f00b6">y</a> -  <a class="code" href="classgbmath_1_1line2d.html#ac8f71a79167222b38daa1b35c3fefb68">dest</a>.<a class="code" href="structgbmath_1_1vec2.html#a9212649e2705d2216739fc89763f00b6">y</a>) * ( <a class="code" href="classgbmath_1_1line2d.html#a88213f34941eec77ffd84cbe682ca600">src</a>.<a class="code" href="structgbmath_1_1vec2.html#a9212649e2705d2216739fc89763f00b6">y</a> -  <a class="code" href="classgbmath_1_1line2d.html#ac8f71a79167222b38daa1b35c3fefb68">dest</a>.<a class="code" href="structgbmath_1_1vec2.html#a9212649e2705d2216739fc89763f00b6">y</a>);</div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;        <span class="keywordtype">float</span> det_k = b1 * ( <a class="code" href="classgbmath_1_1line2d.html#a88213f34941eec77ffd84cbe682ca600">src</a>.<a class="code" href="structgbmath_1_1vec2.html#a86ff75c64d87662abfee8c35c5a343d0">x</a> -  <a class="code" href="classgbmath_1_1line2d.html#ac8f71a79167222b38daa1b35c3fefb68">dest</a>.<a class="code" href="structgbmath_1_1vec2.html#a86ff75c64d87662abfee8c35c5a343d0">x</a>) - b2 * ( <a class="code" href="classgbmath_1_1line2d.html#a88213f34941eec77ffd84cbe682ca600">src</a>.<a class="code" href="structgbmath_1_1vec2.html#a9212649e2705d2216739fc89763f00b6">y</a> -  <a class="code" href="classgbmath_1_1line2d.html#ac8f71a79167222b38daa1b35c3fefb68">dest</a>.<a class="code" href="structgbmath_1_1vec2.html#a9212649e2705d2216739fc89763f00b6">y</a>);</div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;</div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;        pt_to.<a class="code" href="structgbmath_1_1vec2.html#a86ff75c64d87662abfee8c35c5a343d0">x</a> = det_k/pt_to.<a class="code" href="structgbmath_1_1vec2.html#a9212649e2705d2216739fc89763f00b6">y</a>;</div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;        det_k = ( <a class="code" href="classgbmath_1_1line2d.html#a88213f34941eec77ffd84cbe682ca600">src</a>.<a class="code" href="structgbmath_1_1vec2.html#a86ff75c64d87662abfee8c35c5a343d0">x</a> -  <a class="code" href="classgbmath_1_1line2d.html#ac8f71a79167222b38daa1b35c3fefb68">dest</a>.<a class="code" href="structgbmath_1_1vec2.html#a86ff75c64d87662abfee8c35c5a343d0">x</a>) * b2 + ( <a class="code" href="classgbmath_1_1line2d.html#a88213f34941eec77ffd84cbe682ca600">src</a>.<a class="code" href="structgbmath_1_1vec2.html#a9212649e2705d2216739fc89763f00b6">y</a> -  <a class="code" href="classgbmath_1_1line2d.html#ac8f71a79167222b38daa1b35c3fefb68">dest</a>.<a class="code" href="structgbmath_1_1vec2.html#a9212649e2705d2216739fc89763f00b6">y</a>) * b1;</div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;        pt_to.<a class="code" href="structgbmath_1_1vec2.html#a9212649e2705d2216739fc89763f00b6">y</a> = det_k/pt_to.<a class="code" href="structgbmath_1_1vec2.html#a9212649e2705d2216739fc89763f00b6">y</a>;</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160; </div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;        <span class="keywordflow">return</span> pt_to;</div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;    }</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="comment">/*  bool line2d::IsCollisionCircle( vec2&amp; _pContact1, vec2&amp; _pContact2 ,  const Circle&amp; cir  )</span></div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="comment">    {</span></div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;<span class="comment">        vec2 p1(src.x , src.y );</span></div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="comment">        vec2 p2( dest.x ,  dest.y );</span></div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="comment">        const vec2 Dir = ( dest  - src  ) ;</span></div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="comment">        const vec2 VecConst = vec2 ( src.x - cir.center.x , src.y - cir.center.y  ) ;</span></div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;<span class="comment">        const float A = Dir.length_sq();</span></div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;<span class="comment">        const float B = 2.0f * ( VecConst.x * Dir.x + VecConst.y * Dir.y ) ;</span></div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;<span class="comment">        const float C = VecConst.length_sq ( ) - pow ( cir.radius , 2.0f ) ;</span></div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;<span class="comment">        const float D = pow ( B , 2.0f ) - 4.0f * A * C ;</span></div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;<span class="comment">        if ( D &lt; 0.0f )</span></div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;<span class="comment">        {</span></div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;<span class="comment">            return false;</span></div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;<span class="comment">        }</span></div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;<span class="comment">        const float T0 = ( - B + sqrt ( D ) ) / ( 2.0f * A ) ;</span></div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;<span class="comment">        const float T1 = ( - B - sqrt ( D ) ) / ( 2.0f * A ) ;</span></div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;<span class="comment">        vec2 _p1, _p2;  </span></div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;<span class="comment">        if ( T0 &gt; T1 )</span></div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;<span class="comment">        {</span></div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;<span class="comment">            _p1 = p1 + Dir * T0 ;</span></div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;<span class="comment">            _p2 = p1 + Dir * T1 ;</span></div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;<span class="comment">        }</span></div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;<span class="comment">        else</span></div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;<span class="comment">        {</span></div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;<span class="comment">            _p1 = p1 + Dir * T1 ;</span></div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;<span class="comment">            _p2 = p1 + Dir * T0 ;</span></div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;<span class="comment">        }</span></div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;<span class="comment">        _pContact1 = _p1;</span></div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;<span class="comment">        _pContact2 = _p2;</span></div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;<span class="comment">        return true;</span></div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;<span class="comment">    }</span></div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;<span class="comment">    */</span></div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;</div>
<div class="line"><a name="l00082"></a><span class="lineno"><a class="code" href="classgbmath_1_1line2d.html#a55d38a7dd4a9f579087d668d12b54abf">   82</a></span>&#160;    <span class="keywordtype">bool</span>  <a class="code" href="classgbmath_1_1line2d.html#a55d38a7dd4a9f579087d668d12b54abf">line2d::IsIntersectCircle</a>(<span class="keywordtype">float</span>* ps0, <span class="keywordtype">float</span>* ps1,   <span class="keyword">const</span> <a class="code" href="classgbmath_1_1_circle.html" title="circle in two-dimensional space ">Circle</a>&amp; cir )</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;    {</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;        <a class="code" href="structgbmath_1_1vec2.html" title="2d-base vector. Corrected by operators epislon ">vec2</a> v = <a class="code" href="classgbmath_1_1line2d.html#a88213f34941eec77ffd84cbe682ca600">src</a>  - cir.<a class="code" href="classgbmath_1_1_circle.html#a662e46f01623ce6fa203bc9150cd8db8">center</a>;</div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;        <span class="keywordtype">float</span> b = 2.0f * <a class="code" href="classgbmath_1_1line2d.html#a88213f34941eec77ffd84cbe682ca600">src</a>.<a class="code" href="structgbmath_1_1vec2.html#a0ef16b107a451521701541480a76394b">direction_to</a>( <a class="code" href="classgbmath_1_1line2d.html#ac8f71a79167222b38daa1b35c3fefb68">dest</a>).<a class="code" href="structgbmath_1_1vec2.html#ab9f06c31143d61552717f11182ae4c0b">dot</a>( v );</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;        <span class="keywordtype">float</span> c = v.<a class="code" href="structgbmath_1_1vec2.html#ab9f06c31143d61552717f11182ae4c0b">dot</a>(v) - cir.<a class="code" href="classgbmath_1_1_circle.html#a29a6e116edb47149278a32565d6666d1">radius</a> * cir.<a class="code" href="classgbmath_1_1_circle.html#a29a6e116edb47149278a32565d6666d1">radius</a>;</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;        <span class="keywordtype">float</span> discriminant = (b * b) - (4.0f * c);</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;        <span class="keywordflow">if</span>(discriminant &lt; 0.0f)</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;        {</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;            <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;        }</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;        discriminant = sqrtf(discriminant);</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;        <span class="keywordtype">float</span> s0 = (-b + discriminant) / 2.0f;</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;        <span class="keywordtype">float</span> s1 = (-b - discriminant) / 2.0f;</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;        <span class="keywordflow">if</span>(ps0) *ps0 = s0;</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;        <span class="keywordflow">if</span>(ps1) *ps1 = s1;</div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;        <span class="keywordflow">if</span>(s0 &gt;= 0.0f || s1 &gt;= 0.0f)</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;        {</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;            <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;        }</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;        <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;    }</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;</div>
<div class="line"><a name="l00111"></a><span class="lineno"><a class="code" href="classgbmath_1_1line2d.html#ae0690dce5a160bb5b48cd163b8cd2360">  111</a></span>&#160;    <span class="keywordtype">bool</span>  <a class="code" href="classgbmath_1_1line2d.html#ae0690dce5a160bb5b48cd163b8cd2360">line2d::IsIntersectCircleContactPoints</a>(<a class="code" href="structgbmath_1_1vec2.html" title="2d-base vector. Corrected by operators epislon ">vec2</a>&amp; pContact1, <a class="code" href="structgbmath_1_1vec2.html" title="2d-base vector. Corrected by operators epislon ">vec2</a>&amp; pContact2, <span class="keyword">const</span> <a class="code" href="classgbmath_1_1_circle.html" title="circle in two-dimensional space ">Circle</a>&amp; cir )</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;    {</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;        pContact1 = <a class="code" href="structgbmath_1_1vec2.html" title="2d-base vector. Corrected by operators epislon ">vec2</a>();</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;        pContact2 = <a class="code" href="structgbmath_1_1vec2.html" title="2d-base vector. Corrected by operators epislon ">vec2</a>();</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;        <span class="keywordtype">float</span> s0, s1;</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;        <span class="keywordtype">bool</span> res = <a class="code" href="classgbmath_1_1line2d.html#a55d38a7dd4a9f579087d668d12b54abf">IsIntersectCircle</a>(&amp;s0, &amp;s1,   cir);</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;        <span class="keywordflow">if</span>( res )</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;        {</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;            pContact1 =  <a class="code" href="classgbmath_1_1line2d.html#a88213f34941eec77ffd84cbe682ca600">src</a>;</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;            pContact1.<a class="code" href="structgbmath_1_1vec2.html#a844a2e5747ad6586213f81760ca5f44c">move</a>( <a class="code" href="classgbmath_1_1line2d.html#ac98f6441aeb863faca901889c1d682a1">direction</a>(), s0 );</div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;            pContact2 =  <a class="code" href="classgbmath_1_1line2d.html#a88213f34941eec77ffd84cbe682ca600">src</a>;</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;            pContact2.<a class="code" href="structgbmath_1_1vec2.html#a844a2e5747ad6586213f81760ca5f44c">move</a>( <a class="code" href="classgbmath_1_1line2d.html#ac98f6441aeb863faca901889c1d682a1">direction</a>(), s1 );</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;        }</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;        <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;    }</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;  </div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;}</div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;</div>
</div><!-- fragment --></div><!-- contents -->
<hr class="footer"/>
<!--address class="footer"-->
<!--small-->
<br>
&nbsp;&nbsp;&nbsp;<b>Project page:</b> &nbsp;<a target="_blank" href="https://code.google.com/p/gbmath/">https://code.google.com/p/gbmath/</a>&nbsp;&nbsp;<br>
&nbsp;&nbsp;&nbsp;<b>Doc page:</b> &nbsp;<a target="_blank" href="http://www.it.ks777.ru/docs">http://www.it.ks777.ru/docs</a>&nbsp;&nbsp;<br>
<br>
Generated on Sat Jul 27 2013 08:09:04 for gbmath by &#160;
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/>
</a> 1.8.4
